Scalable video object coding & QoS control for next generation space internet

Abstract

The next generation space internet (NGSI) is based on all-IP-based mobile network that merges land-based network, sea-based network, sky-based network, spacebased network, deep space-based network together using existing assess network technologies. There are high signal propagation delays, high error rate, bandwidth variation and time-variety in NGSI. In order to adapt to various space communication environment constraints and bandwidth variation, we propose a reduced dimension scalable video coding scheme based on CCSDS IDCS algorithm and quality of service (QoS) control method by cross layer design (CLD). The experimental result shows that this new method has better performance than that of existing algorithms, and can be adaptive to the bandwidth variation dynamically.

Smooth fractal surfaces derived from bicubic rational fractal interpolation functions

“…It is widely used in natural scenery simulation, security analysis, image processing and so on. Meanwhile, fractal interpolation is fused with other methods, such as wavelet [5].…”